A250877 - OEIS

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A250877 as a triangular array

								90
							288		440
						678		1456		2002
					1328		3442		6812		8736
				2306		6728		16262		30360		37130
			3680		11644		31928		73122		131068		155080
		5518		18520		55386		144248		317878		553736		640002
	7888		27686		88212		250964		629528		1350002		2304492

A250877 as a square array

90	288	678	1328	2306	3680	5518	7888
440	1456	3442	6728	11644	18520	27686
2002	6812	16262	31928	55386	88212
8736	30360	73122	144248	250964
37130	131068	317878	629528
155080	553736	1350002
640002	2304492

A250877 as an upper right triangle

90	288	678	1328	2306	3680	5518	7888
	440	1456	3442	6728	11644	18520	27686
		2002	6812	16262	31928	55386	88212
			8736	30360	73122	144248	250964
				37130	131068	317878	629528
					155080	553736	1350002
						640002	2304492